CN113942550A - Method and device for protecting lateral turnout intrusion limit of train - Google Patents
Method and device for protecting lateral turnout intrusion limit of train Download PDFInfo
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- 230000009545 invasion Effects 0.000 claims description 35
- 238000004891 communication Methods 0.000 claims description 24
- 238000004590 computer program Methods 0.000 claims description 11
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- 238000007689 inspection Methods 0.000 abstract description 5
- 238000004364 calculation method Methods 0.000 abstract description 4
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- B61—RAILWAYS
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Abstract
The invention provides a method and a device for protecting a lateral turnout intrusion limit of a train, wherein the method comprises the following steps: acquiring the route state of a target train and acquiring the limit intrusion state of a front train in a limit intrusion area of a lateral turnout; and establishing an intrusion protection strategy according to the route state of the target train and the intrusion state of the front train. The invention provides a method and a device for protecting the intrusion limit of a train lateral turnout, which correspondingly protect the intrusion limit of the train on an adjacent lateral track when a target train runs on the turnout section, mainly uses logics such as track circuit, interlocked track occupation inspection, position report calculation of a vehicle-mounted system and the like, controls the movement authorization of the train in running in real time according to the running characteristics of freight trains under different conditions, effectively ensures that no other trains intrude on the lateral or directional turnout of the adjacent track section of a route in front of the running of the train, and improves the running safety of the train.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a method and a device for protecting a lateral turnout intrusion limit of a train.
Background
The outside facility intrusion limit refers to all facility equipment in the rail transit range and outside units, and the equipment intrusion limit is caused by displacement due to various reasons; or the condition that the vehicle equipment and the loaded objects thereof exceed the vehicle clearance, influence the safe operation of the train on the line of the section, and need professional first-aid repair and rescue.
The outside facility limit intrusion will cause different degrees of influence on the traveling of the affected area, and may cause the failure or damage of important traveling facility equipment such as a track traffic main line, a vehicle section immediate parking lot line, a contact network, a signal, a vehicle, electromechanics, passenger service and the like, and the traveling can be recovered by professional first-aid repair and rescue.
The existing interlocking system also has an intrusion limit detection function, when a train does not enter an intrusion limit protection section to correspond to an access, if the intrusion phenomenon occurs in the relevant intrusion limit section of a driving permission range, or the track section is occupied due to faults, the risk of collision exists, at the moment, the interlocking system can carry out the safety check of intrusion limit protection, directly closes an access signal machine corresponding to the access, and prohibits the communication train from entering the area.
However, when the head position of the target train enters the access corresponding to the intrusion limit protection zone, if the intrusion phenomenon occurs in the relevant intrusion limit zone within the driving permission range, the interlocking system cannot protect the train from running.
Disclosure of Invention
The invention provides a method and a system for protecting a lateral turnout intrusion limit of a train, which are used for overcoming the defects of the existing intrusion limit protection, single protection strategy and strong constraint of protection conditions and realizing intelligent, safe and comprehensive driving intrusion limit protection.
In a first aspect, the invention provides a method for protecting a lateral turnout intrusion limit of a train, which comprises the following steps: acquiring the route state of a target train and acquiring the limit intrusion state of a front train in a limit intrusion area of a lateral turnout; and establishing an intrusion protection strategy according to the route state of the target train and the intrusion state of the front train. The route state of the target train comprises a route and a non-route, and the limit intrusion state of the front train comprises a limit intrusion state and a limit non-intrusion state; under the condition that the preceding vehicle is a non-communication train, the limit intrusion state is determined according to the tail position of the preceding vehicle; and under the condition that the preceding vehicle is a communication train, determining the limit intrusion state according to the protection envelope of the preceding vehicle.
According to the method for protecting the limit violation of the lateral turnout of the train, which is provided by the invention, the limit violation protection strategy is formulated according to the route state of the target train and the limit violation state of the front train, and the method comprises the following steps: and under the condition that the route state of the target train is determined to be no route and other trains exist in the limit intrusion area of any lateral turnout, the formulated limit intrusion protection strategy is to withdraw the movement authorization of the target train to a route signal machine.
According to the method for protecting the limit violation of the lateral turnout of the train, which is provided by the invention, the limit violation protection strategy is formulated according to the route state of the target train and the limit violation state of the front train, and the method comprises the following steps: and under the condition that the route state of the target train is determined to be the route, and the limit intrusion state of the preceding train is determined to be the limit intrusion state, the established limit intrusion protection strategy is to cancel the movement authorization of the target train.
According to the method for protecting the limit violation of the lateral turnout of the train, which is provided by the invention, the limit violation protection strategy is formulated according to the route state of the target train and the limit violation state of the front train, and the method comprises the following steps: and under the condition that the route state of the target train is determined to be not a route and the limit invasion state of the preceding train is determined to be a limit invasion state, the formulated limit invasion protection strategy is to withdraw the movement authorization of the target train to a route signal machine and output braking or remind a driver to stop at a reduced speed through a train protection system of the target train.
According to the method for protecting the limit violation of the lateral turnout of the train, which is provided by the invention, the limit violation protection strategy is formulated according to the route state of the target train and the limit violation state of the front train, and the method comprises the following steps: and under the condition that the route state of the target train is determined to be the route and the limit invasion state of the preceding train is determined to be the limit invasion, the formulated limit invasion protection strategy is to cancel the movement authorization of the target train and output emergency braking or remind a driver of emergency stop through a train protection system of the target train.
According to the method for protecting the lateral turnout intrusion of the train, under the condition that the acquired intrusion state of a front train is determined to be the intrusion due to the fault of a track circuit, if the access state of the target train is determined to be the access, the established intrusion protection strategy is to cancel the movement authorization of the target train, and output emergency braking or remind a driver of emergency stop through a train protection system of the target train; and if the route state of the target train is determined to be no route, the formulated violation protection strategy is to withdraw the movement authorization of the target train to a route signal machine, and to output braking or remind a driver to stop at a reduced speed through a train protection system of the target train.
According to the method for protecting the lateral turnout intrusion of the train, provided by the invention, if the distance between the intrusion area and the station departure signal machine of the target train is greater than a preset distance threshold, the intrusion protection strategy is finally customized as follows: and informing ground personnel to empty the intrusion area.
According to the method for protecting the lateral turnout intrusion of the train, provided by the invention, if the target train is a freight train and the running speed of the target train is less than a preset speed threshold, the intrusion protection strategy is finally customized as follows: and informing ground personnel to empty the intrusion area.
In a second aspect, the present invention further provides a protection device for lateral switch intrusion of a train, including: the data acquisition unit is used for acquiring the route state of a target train and acquiring the limit intrusion state of a front train in a limit intrusion area of a lateral turnout; and the protection making unit is used for making an intrusion protection strategy according to the route state of the target train and the intrusion state of the front train. The route state of the target train comprises a route and a non-route, and the limit intrusion state of the front train comprises a limit intrusion state and a limit non-intrusion state; under the condition that the preceding vehicle is a non-communication train, the limit intrusion state is determined according to the tail position of the preceding vehicle; and under the condition that the preceding vehicle is a communication train, determining the limit intrusion state according to the protection envelope of the preceding vehicle.
In a third aspect, the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein the processor executes the program to implement the steps of the train side switch intrusion prevention method according to any one of the above methods.
In a fourth aspect, the present invention further provides a non-transitory computer readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the train side switch intrusion prevention method according to any one of the above.
The invention provides a method and a device for protecting the intrusion limit of a train lateral turnout, which correspondingly protect the intrusion limit of the train on an adjacent lateral track when a target train runs on the turnout section, mainly uses logics such as track circuit, interlocked track occupation inspection, position report calculation of a vehicle-mounted system and the like, controls the movement authorization of the train in running in real time according to the running characteristics of freight trains under different conditions, effectively ensures that no other trains intrude on the lateral or directional turnout of the adjacent track section of a route in front of the running of the train, and improves the running safety of the train.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a method for protecting a lateral switch intrusion of a train provided by the invention;
FIG. 2 is a schematic diagram of a driving scenario in an intrusion area according to the present invention;
FIG. 3 is a second schematic view of a driving scenario within an intrusion area provided by the present invention;
FIG. 4 is a third schematic view of a driving scene in an intrusion area according to the present invention;
FIG. 5 is a fourth schematic view of a driving scene in an intrusion area provided by the present invention;
FIG. 6 is a schematic structural view of a lateral turnout intrusion prevention device for a train provided by the invention;
fig. 7 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that in the description of the embodiments of the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The method and the device for protecting the lateral switch limits of the train provided by the embodiment of the invention are described in the following by combining the figures 1-7.
Fig. 1 is a schematic flow chart of a method for protecting a train from lateral switch intrusion, as shown in fig. 1, including, but not limited to, the following steps:
step 101: acquiring the route state of a target train and acquiring the limit intrusion state of a front train in a limit intrusion area of a lateral turnout;
step 102: and establishing an intrusion protection strategy according to the route state of the target train and the intrusion state of the front train.
Wherein,
it should be noted that the external facilities that intrude into the driving of the target vehicle may be moving facilities, fixed facilities, and foreign objects, and also include a front vehicle located in the intrusion area of the lateral switch. The present invention is described only by taking the case that the former train invades the driving limit of the target train, and is not to be considered as a specific limitation to the protection scope of the present invention.
The intrusion area refers to an area between the section position of the intrusion insulation joint on the lateral turnout and the station track traffic signal.
The mobile block system has a train-ground communication function, and the train lateral turnout intrusion prevention method provided by the invention can be realized by being established on the existing mobile block system.
First, a Radio Block Center (RBC) in the mobile Block system can determine the route state of a target train according to the relationship between the received position of the head of the target train and the position of an incoming signal.
Secondly, RBC can also be according to the relation between the rear of a vehicle position of the front vehicle that is located in the limit invasion area of side switch and the terminal signal machine of the route on the fork that the front vehicle is located, confirm the limit invasion state of the front vehicle.
And finally, comprehensively making an intrusion protection strategy capable of ensuring the driving safety of the target train according to the determined access state of the target train and the intrusion state of the front train, and combining the current running speed, the load condition and the like of the target train.
If a plurality of lateral turnouts exist, the limit of the turnout possibly occurring on each turnout needs to be violated, and the limit violation threat caused to the driving safety of the target train is determined as the target limit violation.
The invention provides a protection method for lateral turnout intrusion limit of a train, which correspondingly protects the intrusion limit of the train on an adjacent lateral track when a target train runs on a turnout section, mainly uses logics such as track circuit, interlocked track occupation inspection, position report calculation of a vehicle-mounted system and the like, controls the movement authorization of the train in running in real time according to the running characteristics of freight trains under different conditions, effectively ensures that no other trains intrude on the lateral or directional turnout of the adjacent track section of a route ahead of the train in running, and improves the running safety of the train.
It should be noted that the route state of the target train mainly includes a route and a non-route, and the limit intrusion state of the lead train mainly includes a limit intrusion and a limit non-intrusion; under the condition that the preceding vehicle is a non-communication train, the limit intrusion state is determined according to the tail position of the preceding vehicle; and under the condition that the preceding vehicle is a communication train, determining the limit intrusion state according to the protection envelope of the preceding vehicle.
The route state of the target train can be determined according to whether the train head of the train crosses a route signal machine of a route corresponding to the intrusion protection section. If the head of the train crosses the route signal machine, the route state of the target train is considered as the route; and if the head of the train does not cross the route signal machine, the route state of the target train is considered as non-route.
In the current rail transit, the running train is mainly a communication train, but more non-communication trains still exist on the freight railway, and if the front train located on the lateral turnout of the intrusion protection section is a non-communication train, the intrusion state of the front train can be determined according to the position of the tail of the front train, namely whether the position between the wheel pair and the coupler crosses the lateral turnout where the front train is located, and a station track departure signal machine located in the intrusion protection section. If the tail position of the vehicle crosses the station track departure signal machine, the limit intrusion state of the front vehicle is considered as the limit intrusion state; and if the tail position of the vehicle does not cross the station track departure signal machine, the limit intrusion state of the front vehicle is considered as the limit intrusion state.
Correspondingly, under the condition that the preceding train is determined to be the communication train, the protection envelope of the preceding train can be determined according to the current state and the position information of the preceding train, and the limit invasion state of the preceding train is determined according to whether the protection envelope exceeds the station track departure signal machine or not. If the protection envelope crosses the station track departure signal machine, the limit invasion state of the front vehicle is considered as the limit invasion state; and if the protection envelope does not cross the station track departure signal machine, the limit invasion state of the front vehicle is considered as the limit invasion state.
According to the method for protecting the limit intrusion of the lateral turnout of the train, provided by the invention, different conditions of limit intrusion caused by the normal line operation of the train are distinguished according to the positions of the front and rear trains and the difference of the driving control modes, and a foundation is provided for the subsequent distinctive establishment of a corresponding limit intrusion protection strategy.
Based on the content of the foregoing embodiment, as an optional embodiment, the making an intrusion prevention strategy according to the route state of the target train and the intrusion state of the preceding train includes:
when the access state of the target train is determined to be no access and other trains exist in the intrusion area of any lateral turnout, the established intrusion protection strategy is to withdraw the Movement Authority (MA) of the target train to the access signal machine.
Fig. 2 is a schematic view of a driving scenario in an intrusion area provided by the present invention, as shown in fig. 2, in this scenario, the head of the target train does not cross the incoming signal, while the front train located at the lateral switch S1 is in the intrusion area and in a parking state, and the tail of the train does not cross the outgoing signal of the switch or the authorized envelope thereof is located behind the outgoing signal of the track, that is, the front train is in an uninflated state. Although the front train stops after entering the limit-invading section and the tail of the front train does not enter the route where the target train normally runs, the target train does not collide with the front train under normal conditions, but the situation that the front train regresses or slides is not eliminated, so the risk of collision between the two trains still exists. At this time, the Radio Block Center (RBC) in the mobile Block system will still withdraw the train MA to the route signal, and prohibit the target train from entering a possibly violated section.
According to the method for protecting the lateral turnout intrusion of the train, provided by the invention, under the condition that the front train exists on the adjacent lateral track in the intrusion area, even if the front train is in a parking state and does not cross the station track departure signal machine where the front train is located, the risk of accidents such as slope slipping is still considered, so that the MA of the target train located on the main track is withdrawn to ensure that the two trains do not collide to the maximum extent, and the driving safety is effectively ensured.
Based on the content of the foregoing embodiment, as an optional embodiment, the making an intrusion prevention strategy according to the route state of the target train and the intrusion state of the preceding train may further include:
and under the condition that the route state of the target train is determined to be the route, and the limit intrusion state of the preceding train is determined to be the limit intrusion state, the established limit intrusion protection strategy is to cancel the movement authorization of the target train.
Fig. 3 is a second schematic view of a driving scenario in the intrusion area provided by the present invention, as shown in fig. 3, in this scenario, in the case that the head of the target train has passed through the access signal, if it is determined that there is a leading train in any lateral switch in the intrusion protection area, even if the tail of the leading train does not pass through the station departure signal of the switch or its authorized envelope does not pass through the station departure signal, considering the situation that the leading train may have regressive or rolling over, the present invention cancels the MA by the RBC in the mobile blocking system to prohibit the target train from continuing to drive to the switch, thereby increasing the risk of collision with the leading train.
Aiming at the condition that a target train located on a route passes through a route signal machine but other trains appear in a limit invasion protection area, the fixed block system cannot protect the target train at the moment, and through the train lateral turnout limit invasion protection method provided by the invention, the RBC in the mobile block system is judged to be currently located in the limit invasion protection area through position information reported by a front train, the limit invasion risk exists, and therefore, the MA sent to the target train is cancelled, so that the target train is not allowed to penetrate into a possible limit invasion zone any more. If necessary, the vehicle can be braked and stopped in advance according to the current speed of the target vehicle.
Based on the content of the foregoing embodiment, as an optional embodiment, the making an intrusion prevention strategy according to the route state of the target train and the intrusion state of the preceding train may further include:
and under the condition that the route state of the target train is determined to be not a route and the limit invasion state of the preceding train is determined to be a limit invasion state, the formulated limit invasion protection strategy is to withdraw the movement authorization of the target train to a route signal machine and output braking or remind a driver to stop at a reduced speed through a train protection system of the target train.
Fig. 4 is a third schematic view of a driving scene in an intrusion area provided by the present invention, as shown in fig. 4, in this scene, under the condition that the head of a target train does not cross a route signal, if it is determined that a leading train exists in any lateral switch in the intrusion protection area and the tail of the leading train has crossed a station departure signal of the switch or its authorized envelope has crossed the station departure signal, the present invention cancels the train MA by the RBC in the mobile block system to prohibit the target train from continuing to drive to the switch, and controls its train braking system to output braking according to the current speed of the target train, or reminds the driver to decelerate and stop, so as to avoid intrusion into the train track section to the greatest extent and prevent the target train from side collision.
According to the train lateral turnout intrusion protection method provided by the invention, under the condition that the tail of the front train in the intrusion area is determined to cross the station departure signal machine, the MA of the target train on the approach is withdrawn to the approach signal machine to prohibit the train from entering the intrusion area, so that the possibility of lateral collision between the target train and the front train can be effectively reduced, and the driving safety of the train is ensured.
Based on the content of the foregoing embodiment, as an optional embodiment, the making an intrusion prevention policy according to the route state of the target train and the intrusion state of the preceding train may include:
and under the condition that the route state of the target train is determined to be the route and the limit invasion state of the preceding train is determined to be the limit invasion, the formulated limit invasion protection strategy is to cancel the movement authorization of the target train and output emergency braking or remind a driver of emergency stop through a train protection system of the target train.
Fig. 5 is a fourth schematic view of a driving scenario in the intrusion area provided by the present invention, as shown in fig. 5, in this scenario, in the case that the head of the target train has crossed the access signal, if it is further determined that the tail of the preceding train has also crossed the station departure signal of the turnout or its authorized envelope has crossed the station departure signal in any lateral turnout in the intrusion protection area, in this scenario, a two-train collision accident is very likely to occur.
Aiming at the scene, the RBC in the mobile block system cancels MA of the target train, and simultaneously outputs 80kpa or more of brake or emergency brake, so that the target train is rapidly stopped and prevented from entering the intrusion protection section.
The invention provides a train lateral turnout intrusion protection method, which is used for carrying out emergency braking on a target train under the condition that the target train is determined to have traveled and the intrusion state of a front train is determined to be intrusion, so that the occurrence of a collision accident between two trains is ensured to the maximum extent.
Based on the content of the foregoing embodiment, as an optional embodiment, when it is determined that the obtained intrusion state of the preceding train is an infringed state due to a track circuit fault, if it is determined that the route state of the target train is an already-routed state, the formulated intrusion protection policy is to cancel the movement authorization of the target train, and output emergency braking or prompt a driver to stop emergently through a train protection system of the target train.
And if the route state of the target train is determined to be no route, the formulated violation protection strategy is to withdraw the movement authorization of the target train to a route signal machine, and to output braking or remind a driver to stop at a reduced speed through a train protection system of the target train.
In the case that it is determined that the intrusion zone collected by the interlock is occupied by the preceding train due to the track circuit fault, but actually there is no intrusion train at each lateral switch in the intrusion protection area, for the sake of caution, the intrusion protection strategy provided by the invention still adopts the mode of withdrawing the MA of the target train, and outputs emergency brake through the train protection system of the target train or reminds the driver of emergency stop so as to eliminate the read error of other signals caused by the track circuit fault, thereby causing the threat to the driving safety.
When the head of the target train passes through the route signal machine, the withdrawing of the MA of the target train refers to canceling the movement authorization of the target train; the above-mentioned withdrawing MA of the target train means withdrawing the movement authority of the target train to the route signal by canceling the movement authority of the target train when the head of the target train does not pass the route signal.
According to the method for protecting the lateral turnout intrusion of the train, the MA in the running of the train is controlled in real time according to the track circuit and the interlocked track occupation inspection and the position report of the train in the turnout range of the vehicle-mounted system, and particularly when the track circuit is determined to be in fault, corresponding braking measures can be taken according to the current running speed of the train, so that the running safety of each train is effectively guaranteed.
Based on the content of the foregoing embodiment, as an optional embodiment, if the distance between the intrusion area and the station departure signal machine where the target train is located is greater than a preset distance threshold, the intrusion protection policy is finally customized as follows: and informing ground personnel to empty the intrusion area.
As another optional embodiment, if the target train is a freight train and the operating speed of the target train is less than the preset speed threshold, the violation protection policy is finally customized as follows: and informing ground personnel to empty the intrusion area.
To clearly illustrate the intrusion prevention strategy in this scenario, the following embodiments of the present invention are further described in conjunction with freight railway operation and line data analysis:
1) for example, on a freight railway line, except for partial stations, all the other intermediate stations are positive line passing stations under normal operation, the running speed of a train in the range of two adjacent stations is over 70km/h generally, and the speed reduction situation is very few.
2) When a driver enters a station to receive or send a car through a lateral line, the speed is usually controlled within 20km/h, and the speed is greatly reduced compared with the normal running speed.
3) Due to the risk of coupler breakage and derailment when emergency braking is performed on a freight train, the risk of emergency braking is even greater, especially at speeds below 20 km/h.
4) The mobile block system has a train-ground communication function, and can identify scenes in a train receiving access range and an intrusion area in front of a train head after a train passes through an access signal machine of a station train receiving.
5) The possibility that the limit-invading section is occupied during vehicle receiving due to the two conditions of abnormal train sliding and track section fault occupation exists.
Aiming at freight railway operation and line data, the invention provides different intrusion protection strategies according to different conditions:
scene one: when the target train passes through the station main line at 70km/h, the length of the train receiving throat area of the station where the limit intrusion zone is located is within the range of 274m-451m, and the range is smaller than the preset distance threshold.
According to the above embodiment, after a 5000 ton, ten thousand ton or twenty thousand ton train enters the throat area at the speed of 70km/h, if an invasion zone is occupied by a front train, the MA of the current train is withdrawn, and emergency braking is triggered.
However, in scenario one, due to the fast train speed and short throat area, the driver has no extra means to protect once the violation occurs. Therefore, for the scene that the limit-encroaching section is close to the station track departure signal machine and the limit-encroaching section influences the normal operation of the train, the mobile block system adopts a mode of directly withdrawing the MA to brake the train for protection.
Scene two: and if the distance between the intrusion area and the station departure signal machine of the station where the target train is located is far and larger than the preset distance threshold, when the main line of the target train passes through, the station is arranged near the intrusion insulation node to perform operation, and if the probability of shunting operation is extremely low. The probability that the trains parked on the station track abnormally slide to the section where the intrusion insulation node is located from the S1 strand and the S2 strand is extremely low, and the probability is that the intrusion section is occupied due to the existence of the track circuit fault.
For another example: for an intruding section of any station influencing the operation of the main line of the target train, other lines influencing the passing of the main line of the train are emptied in advance by a duty room and ground personnel, but the moving block system does not prompt and protect the intruding section, so that the driver is prevented from being interfered.
Scene three: when a freight train receives and dispatches at a station side track, the running speed of the train is generally below 20km/h, and the probability of car coupler breakage or train derailment generated when emergency braking is carried out on the freight train at the speed of lower than 20km/h is higher, so that when the side track is received, the operation influenced by other butt-jointed cars cannot be arranged under the normal condition near the limit invasion section of a receiving route, and the condition that the track circuit in the limit invasion section is occupied due to faults also exists.
In the third scenario, due to the low running speed of the train, the driver can observe the line condition and perform train braking operation under the condition of side-line train pick-up and departure. For the limit-invading scene that a freight train line affects the receiving and departure of a moving block train side line, other lines affecting the receiving and departure of the train are emptied in advance by a duty room and ground personnel, a driver observes whether limit-invading occurs on the ground under the low-speed condition to carry out train operation protection, and at the moment, the moving block system does not prompt and protect the limit-invading section, so that the driver is prevented from being interfered.
The method for protecting the intrusion of the lateral turnout of the train provided by the invention is combined with the load and the running speed of the target train, and the intrusion protection strategy is adjusted in a targeted manner, so that on the basis of ensuring that the intrusion accident between the target train and a preceding train method cannot happen, if ground personnel have sufficient time to empty the intrusion area, the driving state of the target train does not need to be adjusted, and the strategy is made and executed more scientifically and reasonably.
Fig. 6 is a schematic structural diagram of a train lateral switch intrusion prevention device provided by the present invention, as shown in fig. 6, mainly including a data acquisition unit 61 and a prevention setting unit 62, wherein:
the data acquisition unit 61 is mainly used for acquiring the route state of a target train and acquiring the limit intrusion state of a front train in a limit intrusion area of a lateral turnout;
and the protection making unit 62 is mainly used for making an intrusion protection strategy according to the route state of the target train and the intrusion state of the front train.
The route state of the target train comprises a route which is accessed and a route which is not accessed, and the limit intrusion state of the front train comprises a limit which is accessed and a limit which is not accessed; under the condition that the preceding vehicle is a non-communication train, the limit intrusion state is determined according to the tail position of the preceding vehicle; and under the condition that the preceding vehicle is a communication train, determining the limit intrusion state according to the protection envelope of the preceding vehicle.
It should be noted that, in the train lateral switch intrusion prevention device provided in the embodiment of the present invention, when the train lateral switch intrusion prevention device is in specific operation, the train lateral switch intrusion prevention method described in any of the above embodiments may be executed, which is not described in detail in this embodiment.
The invention provides a train lateral turnout intrusion prevention device, which correspondingly prevents intrusion of trains on adjacent lateral tracks when a target train runs on a turnout section, mainly uses logics such as track circuit and interlocked track occupation inspection, position report calculation of a vehicle-mounted system and the like, controls movement authorization in train running in real time according to running characteristics of freight trains under different conditions, effectively ensures that no other trains intrude on the lateral or directional turnout of the adjacent track section of a route ahead of the train running, and improves the running safety of the train.
Fig. 7 is a schematic structural diagram of an electronic device provided in the present invention, and as shown in fig. 7, the electronic device may include: a processor (processor)710, a communication Interface (Communications Interface)720, a memory (memory)730, and a communication bus 740, wherein the processor 710, the communication Interface 720, and the memory 730 communicate with each other via the communication bus 740. Processor 710 may invoke logic instructions in memory 730 to perform a train side switch violation prevention method comprising: acquiring the route state of a target train and acquiring the limit intrusion state of a front train in a limit intrusion area of a lateral turnout; and establishing an intrusion protection strategy according to the route state of the target train and the intrusion state of the front train.
In addition, the logic instructions in the memory 730 can be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention further provides a computer program product, the computer program product including a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer, the computer being capable of executing the train lateral switch violation protection method provided by the above methods, the method including: acquiring the route state of a target train and acquiring the limit intrusion state of a front train in a limit intrusion area of a lateral turnout; and establishing an intrusion protection strategy according to the route state of the target train and the intrusion state of the front train.
In yet another aspect, the present invention further provides a non-transitory computer readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to execute the method for protecting a train side switch violation, the method including: acquiring the route state of a target train and acquiring the limit intrusion state of a front train in a limit intrusion area of a lateral turnout; and establishing an intrusion protection strategy according to the route state of the target train and the intrusion state of the front train.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device, which may be a personal computer, a server, or a network device, to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for protecting a lateral turnout intrusion limit of a train is characterized by comprising the following steps:
acquiring the route state of a target train and acquiring the limit intrusion state of a front train in a limit intrusion area of a lateral turnout;
according to the route state of the target train and the limit invasion state of the front train, a limit invasion protection strategy is formulated;
the route state of the target train comprises a route and a non-route, and the limit intrusion state of the front train comprises a limit intrusion state and a limit non-intrusion state;
under the condition that the preceding vehicle is a non-communication train, the limit intrusion state is determined according to the tail position of the preceding vehicle;
and under the condition that the preceding vehicle is a communication train, determining the limit intrusion state according to the protection envelope of the preceding vehicle.
2. The method for protecting a train lateral turnout intrusion limit according to claim 1, wherein the step of formulating an intrusion limit protection strategy according to the access state of the target train and the intrusion limit state of the front train comprises the following steps:
and under the condition that the route state of the target train is determined to be no route and other trains exist in the limit intrusion area of any lateral turnout, the formulated limit intrusion protection strategy is to withdraw the movement authorization of the target train to a route signal machine.
3. The method for protecting a train lateral turnout intrusion limit according to claim 1, wherein the step of formulating an intrusion limit protection strategy according to the access state of the target train and the intrusion limit state of the front train comprises the following steps:
and under the condition that the route state of the target train is determined to be the route, and the limit intrusion state of the preceding train is determined to be the limit intrusion state, the established limit intrusion protection strategy is to cancel the movement authorization of the target train.
4. The method for protecting a train lateral turnout intrusion limit according to claim 1, wherein the step of formulating an intrusion limit protection strategy according to the access state of the target train and the intrusion limit state of the front train comprises the following steps:
and under the condition that the route state of the target train is determined to be not a route and the limit invasion state of the preceding train is determined to be a limit invasion state, the formulated limit invasion protection strategy is to withdraw the movement authorization of the target train to a route signal machine and output braking or remind a driver to stop at a reduced speed through a train protection system of the target train.
5. The method for protecting a train lateral turnout intrusion limit according to claim 1, wherein the step of formulating an intrusion limit protection strategy according to the access state of the target train and the intrusion limit state of the front train comprises the following steps:
and under the condition that the route state of the target train is determined to be the route and the limit invasion state of the preceding train is determined to be the limit invasion, the formulated limit invasion protection strategy is to cancel the movement authorization of the target train and output emergency braking or remind a driver of emergency stop through a train protection system of the target train.
6. The method for protecting a train lateral turnout violation according to claim 1, wherein when it is determined that the violation status of the acquired lead train is due to a track circuit fault, if it is determined that the route status of the target train is a traveled route, the established violation protection strategy is to cancel the movement authorization of the target train, and output an emergency brake or remind a driver of an emergency stop through a train protection system of the target train;
and if the route state of the target train is determined to be no route, the formulated violation protection strategy is to withdraw the movement authorization of the target train to a route signal machine, and to output braking or remind a driver to stop at a reduced speed through a train protection system of the target train.
7. The method for protecting a train lateral turnout violation according to any one of claims 2-6, wherein if the distance between the violation area and the station departure signal of the target train is greater than a preset distance threshold, the violation protection strategy is finally customized as follows: and informing ground personnel to empty the intrusion area.
8. The method for protecting a train lateral switch from intrusion according to any one of claims 2 to 6, wherein if the target train is a freight train and the running speed of the target train is less than a preset speed threshold, the intrusion protection strategy is finally customized as follows: and informing ground personnel to empty the intrusion area.
9. The utility model provides a limit protector is invaded to train side direction switch which characterized in that includes:
the data acquisition unit is used for acquiring the route state of a target train and acquiring the limit intrusion state of a front train in a limit intrusion area of a lateral turnout;
the protection making unit is used for making an intrusion protection strategy according to the route state of the target train and the intrusion state of the front train;
the route state of the target train comprises a route and a non-route, and the limit intrusion state of the front train comprises a limit intrusion state and a limit non-intrusion state;
under the condition that the preceding vehicle is a non-communication train, the limit intrusion state is determined according to the tail position of the preceding vehicle;
and under the condition that the preceding vehicle is a communication train, determining the limit intrusion state according to the protection envelope of the preceding vehicle.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor when executing the computer program implements the train side switch violation protection method steps of any of claims 1-8.
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